Narcotizing-mask.



KARL ANTON (ALLAN) EMANUEL FRIES.

NARGOTIZING MASK.

APPLICATION FILED D110. 26, 1911.

1,021,865, Patented Apr. 2,1912.

INVENTOR A 110mm COLUMBIA PLANOGHAPH IO-.WASHINGTON, D. c.

KARL ANTON (ALLAN) EMANUEL FRIES, 0F STOCKHOLM, SWEDEN.

NARCOTIZINGr-MASK.

Specification of Letters Patent.

Patented. Apr. 2, 1912.

Application filed December 26, 1911. Serial No. 667,708.

To all whom it may concern:

Be it known that I, KARL ANTON (ALLAN) EMANUEL FRIES, a subject of the King of Sweden. and resident of 16 Schelegatan,

Stockholm, in the Kingdom of Sweden,

have invented certain new and useful Improvements in Narcotizing-Masks, of which the following is a specification, reference being made to the accompanying drawing.

In narcotizing persons about to undergo surgical operations, the narcotic is poured by the surgeons assistant on a piece of fabric placed in a narcotizing mask, the assistant holding the drop bottle in which the narcotic is contained in one hand.

The present invention comprises a narcotizing mask which ischaracterized, chiefly, by this that the holder for the fabric or the like saturated with the narcotic is combined with a receiver serving to take up the narcotic, said receiver being connected to a device for controlling'the escape of the narcotic from the receiver to the fabric. The escape of the narcotic fromthe receiver may suitably be effected by pressure prevailing in the receiver. Such a narcotizing'mask possesses several essential advantages some of which are mentioned in the following specification.

In the accompanying drawing, a narcotizing mask embodying the present invention is illustrated, said mask being especially adapted for the use of ether or other liquid having a low boiling point as a narcotic.

Figure 1 shows a longitudinal section of the mask; Fig. 2 is a top plan view; Fig. 3 an end elevation thereof; and detail view of a modification.

The holder for the piece of gauze (or other fabric) saturated with the ether or other narcotic consists, as usual, of two grate-like parts 1 and 2 between which the gauze'is placed, to which end the part 1- is movable relatively to part 2. In Fig. 1a piece of fabric is shown (by dashed and dotted lines) placed between the grates 1 and 2 which 'are kept together by clips 3.

The grate'2 is firmly connected to a suitable metallic ether receiver 4. This receiver, which in the embodiment illustrated is adapted to rest on the patients chin, may be formed as shown in the drawing. At the top the receiver 4; is provided with a short pipe 5 having at its upper end a screw cap 6 upon the removal of which the receiver can'be filled or emptied. Attachedto the Fig. 4 aand press the ether through the fine short pipe 5 are two short pipes 7 and 8, one of which is shorter and has a smaller diameter than the other, which latter incloses the former. Placed within the shorter and narrower pipe 7 is a wick' 9, which passes down into the receiver 4 and the upper end of which is situated in the chamber 10 surrounded by the longer and thicker pipe 8, which chamber does not communicate with the interior of the receiver otherwise than through the wick 9. The part of the latter descending into the receiver should be very loose (also the part of the wick within 'thepipe 7 should not be too firm), and the end of the wick situated in the chamber 10 should be split.

The free end of the pipe 8 carries a cock v 11 communicating with the chamber 10, said cock having three nozzles, viz. one nozzle 12 located inthe vertical central plane of the mask and two nozzles 13 and 13 extending laterally. The cook 11, which shouldbe very carefully made so as to allow an accurate control of the ether passing through the same, is arranged in such a manner that the ether passes to but one of the three nozzles at a time, the middle nozzle 12 being used when the patient lies on his back, while either of the two lateral nozzles 13 is used when the patient is lying on either side. The ether drops or flows from the nozzles onto the fabric retained by the members land 2. The part of the cock which is actuated when the cock is adjusted should preferably consist, as shown, of a rounddisk 14 having a milled edge. The

disk may be provided, if desired, with a a rather strong pressure acting on the surface of the ether will arise in the receiver assages in the wick '9 'into the chamber 10. The escapeof ether from the chamber 10 to the fabric fastened 'in the mask can be controlled as desired by means of the cook 11.

Asshown in the drawing the receiver 4 is shaped to be placed over a patients chin, but it is obvious thatby' a slight variation in the shape of the receiver it may be placed on the patients forehead or other part of the body as desired. The total heat, or a part thereof, necessary for volatilizing the contents of the receiver may be obtained from sources other than the patient being treated. If a narcotic less volatile than ether be employed, the arrangement of Fig. 4 may be found useful, wherein a compressor bulb 15 is provided for producing pressure over the body of narcotic in the receiver and forcing the narcotic up through the wick, or other means employed, for conveying the narcotic to the nozzles.

Among the advantages resulting from the use of narcotizing masks constructed according to this invention the following may be mentioned. The mask works entirely automatically, since an amount of heat sufficient for maintaining the pressure required to deliver the maximum amount of narcotic to the fabric is obtained from the patient. If the receiver for the narcotic is combined with a compressor, the latter need but seldom be operated. The assistant at the operation always has at least one hand free for the necessary attendance to the patient and sometimesespecially if the mask is attached to the patienthe has both hands free. The supply of narcotic to the fabric and, thus, the amount of narcotic adminis tered can be accurately regulated by the assistant and controlled by the surgeon who may, therefore, either entirely dispense with the services of an assistant, or need not rely on a trained assistant. The narcotic being heated, the patient inhales heated narcotic vapor.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a device of the character specified, the combination with an anesthetic receiver adapted to rest in contact with a part of the patients body, of a frame adapted to rest over the patients face and support a suitable absorbent material designed to be saturated with the anesthetic, and means for supplying anesthetic from the receiver to desired parts of the material supported by said frame.

2. In a device of the character specified, the combination with an anesthetic receiver adapted to rest in contact with a part of the patients body, of one member of a frame carried by said receiver, an independent frame member complemental to said first named member, means for securing said members together to hold an absorbent material designed to be saturated with the anesthetic between said members, said frame members and fabric being adapted to rest over the patients face, and means for directing a supply of anesthetic from the receiver to any desired part of the material supported by the frame members.

3. In a device of the character specified,

the combination with an anesthetic receiver adapted to rest in contact with a part of the patients body whereby the heat of the body will vaporize a portion of the anesthetic in said receiver and exert pressure on the remainder of said anesthetic, of a frame adapted to rest over the patients face and support a suitable absorbent material designed to be saturated with the anesthetic, a plurality of nozzles directed over difl'erent parts of said material and means for conveying anesthetic from said receiver through any of said nozzles.

4. In a device of the character specified, the combination with an anesthetic receiver adapted to rest in contact with a part of the patients body, of a frame carried by said receiver and adapted to support a suitable absorbent material over the patients face, a tube projecting from said receiver, a plurality of nozzles adapted to communicate with said tube and having their outlet ends directed over different points of said material, and means for conducting anesthetic from said receiver to said nozzle.

5. In a' device of the character specified, the combination with an anesthetic receiver adapted to rest in contact with a patients body, of a frame carried by said receiver and adapted to support a suitable absorbent material over the patients face, a tube projecting from said receiver and a cock at one end of said tube, nozzles projecting from said cock and having their outlet ends directed over different parts of said material, means for conducting anesthetic from said receiver to said cock, and means for directing the flow of anesthetic through any or all of said nozzles.

6. In a device of the character specified, the combination with an anesthetic receiver adapted to rest in contact with a patients body, of a frame carried by said receiver and adapted to supporta suitable absorbent material over the patients face, a tube attached to said receiver said tube terminating in a cock, nozzles projecting from said cock and having their outlet ends directed over different parts of said material, a wick for conducting anesthetic from the receiver to said cock, and means for directing the flow of anesthetic through any or all of said nozzles.

7. In a device of the character specified, the combination with an anesthetic receiver adapted to rest in contact with a patients body, of a frame carried by said receiver and adapted to support a suitable absorbent material over the patients face, means for supplying anesthetic to desired parts of said material, and means for producing pressure over the anesthetic in the receiver to force said anesthetic out of the receiver and through said first named means.

8. In a device of the character specified,

the combination with an anesthetic receiver, of a frame carried by said receiver and adapted to support a suitable absorbent material over the patients face, a tube projecting from said receiver and a cock at the end of said tube, a second tube projecting from said receiver, said second tube being shorter and of less diameter than said first named tube and being inclosed by the latter, there being a chamber between one end of said smaller tube and the inner side of said cook, a wick extending through said smaller tube and into the receiver for conducting anesthetic from the latter into said chamber, a plurality of nozzles carried by said cock and 5 through which anesthetic is adapted to flow onto said absorbent material, and means for directing the flow of anesthetic through any or all of said nozzles.

In witness whereof I have hereunto set 20 my hand in presence of two witnesses.

KARL ANTON (ALLAN) EMANUEL FRIES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, I). C. 

